Simply slide the Fahrenheit/Celsius switch to the desired setting. It operates using one LR44, 1.5v battery (included).
ArchivesDigital Thermometer
Zoo Med Digital Reptile Thermometer External Probe for Snakes and Lizards Zoomed
Thermometer is new in package.
Exo Terra Digital Thermometer PT2472 for Reptile Terrariums and Enclosures
Exo Terra Digital Thermometer PT2472 for Reptile Terrariums and Enclosures